Finding the Fourth Proportional to 879,678.97, 1,319,430.97 and 406,357.50
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Solution
The fourth proportional to 879,678.97, 1,319,430.97 and 406,357.50 is: 609,495.84
Step by Step Solution
- Step 1: Write the proportion equation
879,678.97 : 1,319,430.97 = 406,357.50 : x - Step 2: Convert to fraction form
879,678.97/1,319,430.97 = 406,357.50/x - Step 3: Cross multiply
879,678.97x = 1,319,430.97 × 406,357.50 - Step 4: Simplify right side
879,678.97x = 536,160,670,391.78 - Step 5: Solve for x
x = 536,160,670,391.78/879,678.97 - Step 6: Final answer
x = 609,495.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.